Are the servers only needed for training the model you want to train? And then once it is trained you no longer need them?
If so, why do you not just rent servers for this project from somewhere like this:
https://www.runpod.io/pricing There are hundreds of companies just like that one around and you can rent this hardware for much less than actually buying it.
Keep in mind even if you get the servers you wish to get, you still require motherboards, extensive amounts of expensive RAM, SSDs, PSUs and it will cost an arm and a leg in terms of electricity.
Think of it like Salad thinks about Chantal - she is now in Canada and he is away from her, so he just manipulates her to get her YouTube money without having to actually deal with her IRL.
TLDR: Why have the cow when you can have the milk for free? The hardware you're trying to get is extremely expensive to own and operate.
Perhaps do not abandon the approach you're doing already, but perhaps contact a few cloud providers and ask for a deal for the "social good" project you are trying to action and maybe one of them would be willing to support with a few free hours as credits?
(I did search the thread for "rent" so don't get mad at me for suggesting this)
edit: just to add that with the rent option you'll get access to the cream of the crop hardware instead of handmedowns that are old and clunky